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Finding the Fourth Proportional to 567,655.20, 783,351.36 and 313,007.04

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Solution

The fourth proportional to 567,655.20, 783,351.36 and 313,007.04 is: 431,942.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,655.20 : 783,351.36 = 313,007.04 : x
  2. Step 2: Convert to fraction form
    567,655.20/783,351.36 = 313,007.04/x
  3. Step 3: Cross multiply
    567,655.20x = 783,351.36 × 313,007.04
  4. Step 4: Simplify right side
    567,655.20x = 245,194,490,473.57
  5. Step 5: Solve for x
    x = 245,194,490,473.57/567,655.20
  6. Step 6: Final answer
    x = 431,942.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.